UK Plans Standardized Software Rules for Company Tax Returns

March 9, 2026, 11:50 AM UTC

The UK is planning to pilot a standardized corporation tax return system for more than three million businesses from October 2027, the country’s tax authority said Monday.

His Majesty’s Revenue and Customs plans to pivot away from its current “free-format structure” for software to a prescribed format for corporation tax computations, according to a paper open to public consultation until June 1, 2026.

The current flexibility intended to cater to a diverse business population has led to “too much divergence,” creating “significant variation in how essentially similar information is presented,” HMRC said.

“In many cases, key information is ...

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